未分类题

阅读以下说明和java代码，将应填入(n)处的字句写在对应栏内。
[说明]
本程序中预设了若干个用户名和口令。用户输入正确的用户名后，可以查找对应的口令，一旦输入结束标记“end”，程序结束。
[Java代码]
import java. io. *:
public class User {
public String user;
public Siring pass;
public User() { }
public User( String u,String p) {
user=u;
pass=p;
}
public String (1) () { return this. user; }
public String (2) () { return this. pass; }
public static void main(String[] args) {
User ua[]={new User('Li','123456'), new User('wang','654321'),
new User('Song','666666')};
while(true) {
InputStreamReader reader = new InputStreamReader(System. in);
BufferedReader inpul = new BnfferedReader(reader);
System. out. print('Enter your name:');
String name = null;
try { name = input. readLine();}
catch (IOException ex) {}
if((3)) break;
int i;
for (i=0;i＜3;i++) {
if (name. equals(ua[i]. getUser())){
System. out. println('密码:'+ua[i].getPass());
(4);
}
}
if ((5)) System. out. println('该用户不存在!');
}
}
}